1995 l coupe impreza engine light kicks on when car is stopped for a few seconds to a minute.

I would check the plug wires and the coil pack if it has one and if it dont check the distributer cap and rotor bug.

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check your grounds. I find many easy fixes by cleaning all the grounds around the engine bay. I would also check the ground at the fuel pump connector that wiring is prone to corrosion and breakage

Mass air flow sensor maybe ! What is the mass air flow sensor voltage . What is TPS voltage , Check engine light on ? Testing these engine sensors an others , plus fuel system pressure an flow testing is the way to a fix ! Not somebodys guess on here . Plus not just replacing parts . Learning how it all works an testing fixes cars !
Hooking up testing equipment , scan tool , DVOM - digital volt ohm meter , lab scope etc....
Motor Age TST Diagnosing Driveability with Global OBD II

1995 windstar., 3.8 eng. Cut off after being stop awhile , slow get up to speed, new & new plugs installed.

Sounds like vapour lock in your fuel or 02 sensor bank one.However you should have check engine light on if so save money and time on the guessing scan for fault codes and repair.

I think that year may have an ignition fuse, if that's not it you might try the igniter, also check to see if the check engine light comes on when you turn the key on, if not you may have a bad ECU (computer).

1995 Imprezza what??? coupe, sedan, wagon???FWD?? AWD?? Engine size??its IN THE TANK, under the rear seat. Take out the bottom and back.

Could be spark plug wires need replacing. Go out at night and start car in dark with hood raised. Look for little flashes or sparks. If nothing then try misting a little moisture from a spray bottle and see it you can't replicate the problem. I am assuming the moisture is causing the wires to arc and once the engine heats up it dries things out enough thatit runs okay

you need to connect the data link connectors underneath the steering wheel, then turn ignition on and count the flashes that the engine management light blinks..Post back

i had this problem with mine if your cable spins wen the car is moving its not the gear box end or the cable its the speed sensor in the speedo its self its very easy to fix you have to strip the speedo out of the case the sensor is only small and on the under side of the speedo the sensor is about 50 mm long and 10 mm wide change that and it should be ok
oh remember to reset your ecu